- 4119 - Local Passenger Transportation (20 Companies)
- 4121 - Taxicabs (12 Companies)
- 4131 - Intercity & Rural Bus Transportation (2 Companies)
- 4141 - Local Bus Charter Service (1 Company)
- 4142 - Bus Charter Service, Except Local (1 Company)
- 4212 - Local Trucking, Without Storage (36 Companies)
- 4213 - Trucking, Except Local (29 Companies)
- 4214 - Local Trucking With Storage (14 Companies)
- 4215 - Courier Services, Except By Air (14 Companies)
- 4222 - Refrigerated Warehousing And Storage (2 Companies)
- 4225 - General Warehousing And Storage (35 Companies)
- 4226 - Special Warehousing And Storage (30 Companies)
- 4311 - U S Postal Service (29 Companies)
- 4481 - Deep Sea Passenger Transportation, Except Ferry (6 Companies)
- 4492 - Towing & Tugboat Services (1 Company)
- 4493 - Marinas (2 Companies)
- 4499 - Water Transportation Services (2 Companies)
- 4724 - Travel Agencies (29 Companies)
- 4725 - Tour Operators (2 Companies)
- 4731 - Freight Transportation Arrangement (34 Companies)
- 4783 - Packing And Crating Services (1 Company)
- 4789 - Transportation Services (3 Companies)
- 4812 - Radiotelephone Communications (45 Companies)
- 4813 - Telephone Communication Except Radio (39 Companies)
- 4822 - Telegraph And Other Message Communications (1 Company)
- 4832 - Radio Broadcasting Stations (6 Companies)
- 4841 - Cable And Other Pay Television Services (13 Companies)
- 4911 - Electric Services (4 Companies)
- 4932 - Gas And Other Services Combined (1 Company)
- 4939 - Combination Utilities (1 Company)
- 4941 - Water Supply Systems (3 Companies)
- 4953 - Refuse Systems (15 Companies)
- 4959 - Sanitary Services (3 Companies)
- 4971 - Irrigation Systems (15 Companies)
- 5013 - Motor Vehicle Supplies And New Parts (12 Companies)
- 5014 - Tires And Tubes (8 Companies)
- 5015 - Motor Vehicle Parts, Used (1 Company)
- 5021 - Furniture (2 Companies)
- 5023 - Homefurnishings (7 Companies)
- 5031 - Lumber, Plywood, Millwork & Wood Panels (6 Companies)
- 5032 - Brick, Stone And Related Material (17 Companies)
- 5033 - Roofing, Siding And Insulation (2 Companies)
- 5039 - Construction Materials (4 Companies)
- 5044 - Office Equipment (4 Companies)
- 5045 - Computers, Peripherals And Software (3 Companies)
- 5046 - Commercial Equipment (1 Company)
- 5047 - Medical And Hospital Equipment (5 Companies)
- 5049 - Professional Equipment, Nec (4 Companies)
- 5051 - Metal Service Centers And Offices (4 Companies)
- 5063 - Electrical Apparatus And Equipment (10 Companies)